The spider often spreads its web right across between two trees, the thread extending from the very top of the tree to the ground, while the insect springs up again in an instant from the earth, and travels aloft by the self-same thread, thus mounting at the same moment and spinning its threads. When its prey falls into its net, how on the alert it is, and with what readiness it runs to seize it! Even though it should be adhering to the very edge of its web, the insect always runs instantly to the middle, where it can most effectually shake the web, and so successfully entangle its prey. When the web is torn, the spider immediately sets about repairing it, and that so neatly, that nothing like patching can ever be seen. The spider lies in wait even for the young of the lizard, and after enveloping the head of the animal, bites its lips; a sight by no means unworthy of the amphitheatre itself, when it is one’s good fortune to witness it. Presages also are drawn from the spider; for when a river is about to swell, it will suspend its web higher than usual. As these insects spin not in calm weather, but when it is cloudy, a great number of cobwebs is a sure sign of showery weather. It is generally supposed that the female spider spins while the male lies in wait for prey, thus making an equal division of their duties.

Locusts lay their eggs in large masses, in the autumn, in holes which they form in the ground. These eggs remain underground throughout the winter, and in the ensuing year, at the close of spring, small locusts issue from them, of a black color. A wet spring destroys their eggs, while, if it is dry, they multiply in great abundance.

The Boys' and Girls' Pliny — Part 150

Locusts are produced only in champaign places, that are full of chinks and crannies. In India, it is said that they attain the length of three[196] feet, and that the people dry the legs and thighs, and use them for saws. Sometimes the winds carry off these creatures in vast swarms, upon which they fall into the sea or standing waters, and perish. Some authors have stated, that they are unable to fly during the night, in consequence of the cold, being ignorant of the fact that they travel over lengthened tracts of sea for many days together, a thing the more to be wondered at, as they have to endure hunger all the time as well, for this it is which causes them to be thus seeking pastures in other lands. Such a visitation is looked upon as a plague inflicted by the anger of the gods; for as they fly they appear to be larger than they really are, while they make such a loud noise with their wings, that they might be readily supposed to be winged creatures of quite another species. Their numbers, too, are so vast, that they quite darken the sun; while the people below are anxiously following them with the eye, to see if they are about to make a descent, and so cover their lands. After all, they have the requisite energies for their flight; and, as though it had been but a trifling matter to pass over the seas, they cross immense tracts of country, and cover them in clouds which bode destruction to the harvests. Scorching numerous objects by their very contact, they eat away everything with their teeth, even the very doors of the houses.

The Boys' and Girls' Pliny — Part 150